Backpack having a tube-type shoulder belt

ABSTRACT

The present invention relates to a backpack comprising a shoulder belt having two ring-shaped tubes provided with respective air-injection portions so as to enable a user to inject air into the tubes to inflate the shoulder belt and to thus enable the backpack to tightly contact a shoulder of a wearer. Thus, the backpack is prevented from slipping down from the shoulder of the wearer or from moving sideways, thereby protecting the waist of the wearer from being burdened to thus prevent spondylopathy and fatigue, and rendering user activity convenient. The shoulder belt of the backpack of the present invention has the ring-shaped tubes provided with respective air injection portions. In addition, two tubes of the shoulder belt are interconnected via a pipe, the length of each tube is extended toward the body of the backpack such that the length of each tube is the same as that of the body of the backpack, and the tubes are coupled to a back of the backpack. Preferably, the shoulder belt may be wrapped in fabric or the like so as to be protected and connected to the body of the backpack, or the shoulder belt may be made of fabric or the like, and the upper portions thereof may have spaces for accommodating said tubes, respectively.

TECHNICAL FIELD

The present invention relates to a backpack including shoulder beltsrespectively having hook-shaped (∩-shaped) tubes. More particularly, thepresent invention relates to a backpack which enables a wearer to injectair into the tubes to inflate the tubes into the ∩-shaped form and tothus enable the backpack to tightly contact the wearer's shouldersdespite of weight of the backpack, so that the backpack is preventedfrom slipping from the wearer's shoulders or from moving sideways andthe wearer can feel less pressure of the backpack to the wearer'sshoulders.

BACKGROUND ART

In general, because a backpack that a student mainly uses instead of aschool bag or uses for traveling or hiking contains heavy things such asbooks or articles therein, the weight of the heavy backpack istransferred to the a wearer's body as it is, so that the wearer feelstoo much pressure.

Particularly, because the heavy backpack imposes a heavy burden on thewearer's waist and shoulders, it has a bad effect on the wearer's spineand increases fatigue, and especially, threatens teenage students'health.

Moreover, because the wearer who carries the bag on the wearer'sshoulders cannot walk in a correct posture due to a severe pressure andpain on the shoulders and walks in an awkward posture, and hence, in thecase of teenagers who carry the bags on their shoulders every day, theyhave several problems in that their spines are crooked or distorted inthe process of their growth and in that they may feel pains on thewaist, shoulders, or neck.

Accordingly, it is encouraged to arrange things neatly in order insidethe backpack to thereby balance weight of the backpack and to adjust thelength of the shoulder belts according to the wearer's body conditionsto thereby reduce a strain on the wearer's waist, prevent the shoulderpain and make the wearer take a balanced posture. However, such a methodis just a temporary expedient and, actually, it is not easy to relievethe strain or pressure on the waist and shoulders, and hence, some ofthe backpacks respectively have a strap for tightening the wearer'schest part to fix the backpack to the shoulders. Alternatively, some ofthe wearers pull the shoulder belts tightly with both hands so that therear part of the backpack gets in close contact with the wearer's back.

In the meantime, in consideration of the above-mentioned problems,shoulder pads are respectively attached to rear faces of the shoulderbelts being in contact with the wearer's shoulders so as to relieve thepain applied to the wearer's shoulders. However, because the shoulderpads are in a simple structure that wrapping paper is covered and sewedon an urethane foam or a sponge, which is fit on the shoulder belts, theshoulder pads can just relieve pain or impact on the shoulders butcannot disperse the weight applied to the waist and shoulders when thewearer carries the backpack on the shoulders, and hence, theconventional methods cannot solve the above-mentioned problems.

Korean Patent No. 10-0462464 discloses a shoulder band protector forbag. In the prior art, the shoulder band protector for bag includes: ahard cover, which wraps a tube having an injection hole for injectingand discharging air to thereby widely wrap around the wearer's shoulder;retaining jaws respectively fixed at both sides of an upper portion ofthe cover in such a fashion that a shoulder band is located between theretaining jaws to thereby prevent the shoulder band from being separatedsideways; and male and female detachable buckles respectively joined tothe shoulder bands respectively fixed to both sides of the retainingjaws.

As another example, Korean Utility Model Publication No. 20-1992-0005175discloses an air-injectable type suspender for bags. The air-injectabletype suspender for bags includes: a tube pouch formed in the middle of aconnection strap to which a hook and a buckle are connected, the tubepouch having a tube insertion hole, to which a slide fastener isattached, and a protruding injection hole; and an air tube inserted intothe tube pouch, the air tube having an air injection hole and apartition wall.

Such prior arts have the shoulder protector of the tube type, to whichair is injected, to thereby relieve pressure of the backpack applied tothe wearer's shoulders. However, the prior arts cannot reduce a burdenapplied to the wearer's waist because the backpack is not fixed to thewearer's shoulders, and hence, have a problem in that the backpacks maycause spondylopathy or fatigue because the backpack slips down from thewearer's shoulders due to the weight of the backpack or moves sideways.

Therefore, the backpacks according to the prior arts can relieve onlythe pain applied to the top of the shoulder of the wearer where theshoulder protector touches but cannot reduce the burden on the wearer'swaist, and hence, cannot solve the problem caused by pressure applied tothe wearer's spine or clavicle.

DISCLOSURE Technical Problem

Accordingly, the present invention has been made in an effort to solvethe above-mentioned problems that a wearer's waist is bent backward orforward because the backpack is not fixed to the wearer's shoulders andslips down and that the backpack imposes a burden on the wearer's waistbecause the backpack moves sideways. Accordingly, it is an object of thepresent invention to provide a backpack having a tube-type shoulder belthaving hook-shaped tubes respectively formed at upper portions ofshoulder belts so as to enable a wearer to inject air into the tubes toinflate the shoulder belt into a hook shape and to thus enable thehook-shaped shoulder belts to tightly get in contact with and be fixedto the wearer's shoulders without slipping down from the wearer'sshoulders and moving sideways, thereby reducing the weight of thebackpack applied to the wearer's waist and relieving heaviness of thebackpack applied to the wearer's shoulders owing to air pressure of theshoulder belts.

Technical Solution

To achieve the above objects, the present invention provides a backpackhaving a tube-type shoulder belt including: a backpack body foraccommodating books or articles therein; and shoulder belts respectivelyhaving tubes, each of the tubes having an air injection portion formedat one side thereof.

The two tubes of the upper portions of the shoulder belts may beinterconnected via a pipe.

The tubes of the upper portions of the shoulder belts of the backpackbody may be wrapped by a covering formed by sewing work, may bedetachably attached to the shoulder belts by female Velcro tape disposedon the upper portion of the shoulder belt of the backpack body and maleVelcro tape disposed on the tube, or may be respectively inserted intospaces, which are respectively formed in the upper portions of theshoulder belts made of fabric or the like for accommodating the tubes.

Furthermore, the shoulder belt may have an air injector for injectingair into the air injection portion of the tube.

Advantageous Effects

The backpack having the tube-type shoulder belt according to the presentinvention has hooks formed by air injected into the tubes located on theupper portions of the shoulder straps for suspending the backpack on thewearer's shoulders so as to prevent the backpack not from slipping downfrom the wearer's shoulders and moving sideways by fixing and supportingthe backpack on the wearer's shoulders, whereby the backpack can preventspondylopathy by reducing a burden applied to the wearer's waist andrelieve heaviness of the backpack applied to the wearer's shouldersowing to air pressure of the tubes to thereby prevent spondylopathy andfatigue even though the wearer carries the backpack on the shoulders fora long time because the backpack corrects the wearer's posture.

DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of a backpack having a tube-type shoulderbelt according to a preferred embodiment of the present invention.

FIG. 2 is a perspective view of tube of the backpack according to thepresent invention.

FIG. 3 is a perspective view of a backpack having a tube-type shoulderbelt according to another preferred embodiment of the present invention.

10: backpack body 11: shoulder strap 12: back plate

20: shoulder belt 21: air injection portion

22: tube 23: covering

30: pipe 40: tube extension portion

MODE FOR INVENTION

Reference will be now made in detail to the preferred embodiment of thepresent invention with reference to the attached drawings. It will beunderstood that words or terms used in the specification and claimsshould be interpreted as having a meaning that is consistent with theirmeaning in the context of the relevant art and the technical idea of theinvention, based on the principle that an inventor may properly definethe meaning of the words or terms to best explain the invention.

As shown in the drawings, a backpack having a tube-type shoulder beltincludes: a backpack body 10 for accommodating books or articlestherein; two shoulder belts 20 respectively arranged on upper portionsof two shoulder straps 11 of the backpack body 10, the shoulder belts 20respectively having tubes 22, each of the tubes 22 having an airinjection portion 21 perforatingly formed at one side thereof so as toenable a wearer to inject air into the tube so that the shoulder belt isinflated in a hook shape to tightly get in contact with the wearer'sshoulder.

The backpack body 10 is applicable to all types of bags, which studentscarry on their shoulders after putting books or other articles therein,such as school bags, bags for climbers, traveling backpacks, and others,and may be also applied to backpacks having only one shoulder beltaccording to the shapes of the backpack body.

Because the shoulder belt 20 has the same hook shape as the upperportion of the wearer's shoulder, the backpack can tightly get incontact with the entire upper portion of the shoulder of the wearer insuch a way as to be fixed on the wearer's shoulder to prevent thebackpack from slipping down or moving sideways, so that the backpackmakes the wearer take a correct posture by evenly dispersing the load ofthe backpack and prevents spondylopathy and fatigue by reducing a burdenapplied to the wearer's waist.

Particularly, because the shoulder belts 20 respectively have the tubes22, when the wearer injects air into the tubes 22 using the airinjection portions 21 respectively formed on the tubes 22, pressureapplied to the wearer's shoulder is relieved due to a damped pressure bythe injected air.

As shown in FIG. 1, a pipe 30 is interposed between the tubes 22 of thetwo shoulder belts 20 for connecting the tubes 22 with each other.

Accordingly, even though the air injection portion is formed on only onetube, when the wearer inject air through the air injection portion 21,the injected air is transferred to the tube 22 of the other shoulderbelt 20 connected to the pipe 30, so that air can be injected into allof the tubes 22 of the shoulder belts 20 to thereby enhance usability.

Particularly, the shoulder belts 20 which are located at the wearer'sshoulders and chest part are supported by the wearer's shoulders andchest while the wearer carries the backpack 10 on the shoulders, andhence, it enhances contactability and supportability of the backpack 10.In this instance, because air is injected into the tubes 22, theshoulder belts 20 provide a natural cushioning function so as not topressurize the wearer's shoulders and chest.

Moreover, in another preferred embodiment of the present invention, thetube 22 which is joined to the backpack body 10 is extended to thelength of the backpack body and is joined to a back plate of thebackpack, and then, the backpack can reduce pressure applied to theuser's back due to a buffering action of the tubes.

In the meantime, it is preferable that each of the shoulder belts has acovering 23 made of fabric or the like for wrapping and protecting thetube 22 and connecting the tube 22 to the backpack body 10 and theshoulder strap 11. The tube 22 and the covering 23 of the shoulder belt20 may be bonded through generally used bonding work, such ashigh-frequency deposition, and the shoulder belts 20 respectively havingthe tubes 22 and the coverings 23 can be respectively connected to thebackpack body 10 and the shoulder straps 11 through sewing work or thelike.

Furthermore, the backpack body 10 further includes a female Velcro tape10 a disposed on the rear face of the shoulder strap 11 and the shoulderbelt 20 has a male Velcro tape 20 a, so that the shoulder belt 20 isdetachably attached to the shoulder strap 11 via the female and maleVelcro tapes 10 a and 20 a. Alternatively, the shoulder belt 20 may beformed in such a fashion that a space for accommodating the tube isformed in the upper portion of the shoulder strap, which is made offabric or the like, and the tube 22 is inserted into the space.

In the case that the tube 22 is extended to the length of the backpackbody and is joined to the back plate of the backpack, an extensionportion of the tube 22 may be mounted inside the back plate of thebackpack.

Therefore, because the shoulder belts 20 can be detachably attached tothe shoulder straps 11, as occasion demands, the wearer can attach theshoulder belts 20 onto the shoulder straps 11 or detach the shoulderbelts 20 from the shoulder straps 11 in order to use only the shoulderstraps 11, and hence, it enhances usability and convenience.

The shoulder belt 20 may further include an air injector for injectingair into the air injection portion 21 of the tube 22. So, the wearer canconveniently increase and decrease air pressure of the inside of thetube 22 of the shoulder belt 20 using the air injector so as toreinforce the hook shape of the shoulder belt or to relieve the pressureof the backpack applied to the wearer's shoulder or chest.

Additionally, if necessary, the wearer can easily discharge the insideair of the tube 22 through the air injection portion 21, and the tube 22may further include an air outlet.

The preferred embodiments of the present invention are capable of beingmodified and changed in various ways, but it should be understood thatthere is no intent to limit the present invention to said embodiments,and it should be also understood by those of ordinary skill in the artthat various changes of the embodiments in combination with the priorarts may be made therein within the scope of the invention as defined bythe appended claims.

1. A backpack comprising: a backpack body (10) for accommodating articles therein; and shoulder belts (20) respectively formed on shoulder straps (11) of the backpack body (10) and respectively having tubes (22) of a hook shape, each of the tubes (22) having an air injection portion (21).
 2. The backpack according to claim 1, wherein the tubes (22) of the shoulder belts (20) are interconnected via a pipe (30).
 3. The backpack according to claim 1, wherein an upper portion of the tube (22) is extended to the length of the backpack body (10) and joined to a back plate (12) of the backpack. 